Apparently, the root issue is rhythmbox does not implement the root mpris spec correctly. The Desktopentry prop on the root interface should contain the name of the desktopfile minus the .desktop suffix. Rhythmbox exposes the full path to the file.
Apparently, the root issue is rhythmbox does not implement the root mpris spec correctly. The Desktopentry prop on the root interface should contain the name of the desktopfile minus the .desktop suffix. Rhythmbox exposes the full path to the file.